APA (7th ed.) Citation

Olson, L., Caton, C., & Duffy, M. (1981). The Elderly and the future economy. Lexington Books.

Chicago Style (17th ed.) Citation

Olson, Lawrence, Christopher Caton, and Martin Duffy. The Elderly and the Future Economy. Lexington, Mass.: Lexington Books, 1981.

MLA (9th ed.) Citation

Olson, Lawrence, et al. The Elderly and the Future Economy. Lexington Books, 1981.